Acorn vs Tinuiti: Two Very Different Kinds of Scale

The ownership map, because it shapes everything downstream

Both firms are substantial, but they are substantial in structurally different ways, and that difference shows up in your account team long before it shows up in a pitch deck.

• Tinuiti describes itself on its own about page as having "1000+ Proud employee owners" and "$4B Digital media under management". It grew partly by acquisition — CPC Strategy, an Amazon agency, in 2019, and the Amazon operations specialist Ortega Group in 2021 — and it is independent rather than part of a holding company.
• Acorn-i was founded in 2018 by two Amazon alumni and acquired by The Brandtech Group in 2022. In November 2023 the group announced Acorn-i was being fused with Jellyfish, itself acquired by Brandtech earlier that year, to create Jellyfish Commerce. The acorn-i.com site is still live and, read on 20 August 2026, describes "A Technology Led Ecommerce Agency" with an analytics product called Ignite. It does not mention Jellyfish or Brandtech.

Employee ownership tends to hold senior people in place; group ownership tends to bring more capability into reach and reorganise more often. Neither is better in the abstract. What you want to know is which one your named account lead is living inside, and whether their reporting line changed in the last year.

A note for anyone who arrived here from a programmatic search: Amazon DSP means the demand-side platform, the advertising product. Amazon Delivery Service Partner is the unrelated courier franchise. This page is about advertising.

Tinuiti's measurement practice is a genuine advantage, and we should say so

It would be easy for a page published by a DSP agency to skip this, so here it is stated properly. Tinuiti has built a measurement platform of its own, Bliss Point, positioned as a marketing operating system that connects audience, creative, media and measurement. Their published material on incrementality testing describes geo splits and audience holdouts used to separate net new sales from sales that would have happened anyway, with impression-level exposure connected to sales across channels to estimate lift by network, format and audience.

That is the same intellectual position we hold — that attribution describes and only experiments prove — backed by a productised platform and years of practice. A brand user of Bliss Point would recognise every word of it, and any comparison page that pretended otherwise would be worthless to you.

Who Tinuiti suits better than us: a brand spending seriously across many channels at once — connected TV, paid search, social, retail media — that needs one measurement layer over all of it. We measure Amazon display. If the question is how Amazon display trades off against a streaming budget and a search budget in the same model, a full-mix measurement practice is the right hire and we would tell you so on the call.

Where Acorn-i is the better call

Acorn-i's pitch is not headcount, it is technology and category expertise in a smaller unit. The Ignite platform pulls marketplace, Amazon, DTC and advertising data into one place; the founders came out of Amazon rather than out of media buying; the group behind them adds creative production and a wider content capability.

That suits three situations well. First, a brand whose data is scattered across marketplaces and a DTC site and who wants one view of it before deciding anything. Second, a brand that needs volume creative and retail media in the same conversation, because splitting those across two suppliers is how briefs go stale. Third, a European or multi-region brand for whom a smaller senior team is more accessible than a large one.

The trade-off is the mirror image of Tinuiti's: less scale, less published measurement machinery, and — as with most agencies this size — an evidence base of case studies rather than a productised testing framework. Ask what their standard incrementality method is and whether it is included or billed.

The attention arithmetic, which decides more engagements than capability does

Capability comparisons rarely predict satisfaction. Attention does. Two questions get at it, and both should be answered with numbers rather than reassurance.

• How many accounts does my day-to-day lead currently hold? Not the team, the person. A trader carrying four accounts behaves differently from one carrying twelve, and neither number is shameful — but only one of them means your account gets looked at on a quiet Wednesday.
• Where would my spend rank inside your book? Being the smallest client at a very large agency and the largest at a very small one are both uncomfortable positions, for opposite reasons. Somewhere in the middle of the distribution is where service tends to be best.

A third, cheaper question: ask to meet the person who will actually run the account, not the person presenting. If that meeting is difficult to arrange during a sales process, it will not get easier afterwards.

Neither publishes a price, and here is how to handle that

Stated neutrally, because it is the category norm: both quote on a call. Nothing on either site prices the work, and that is true of most agencies in this space rather than a mark against these two.

What makes two unpriced quotes comparable is forcing them into one shape. Insist on the fee basis and the exact rate; the full inclusions list, especially creative production, clean-room analysis and audience development; the minimum term and the notice period as separate numbers; the minimum monthly media spend; and where the rate steps down as spend grows, written into the agreement rather than promised on a call.

Then add one clause worth having from any agency, ourselves included: written notice of any fee change, with your agreement required rather than a revised schedule appearing on an invoice. And do the annual multiplication yourself. A monthly number times twelve is the figure your finance team will actually see.

What each firm's history predicts about your account

Corporate history is unusually informative in agency selection, because how a firm has absorbed other businesses tells you how it absorbs new accounts.

Tinuiti grew by acquiring specialists and keeping them. CPC Strategy, an Amazon agency, came in during 2019; the Amazon operations specialist Ortega Group followed in 2021. That pattern — buy expertise, retain it, build a shared measurement layer over the top — tends to produce deep channel benches and a house methodology that everyone is trained on. What it predicts for you: consistent process, strong measurement, and a house way of doing things that will not bend far to accommodate an unusual brief.

Acorn-i was acquired and then reorganised into a new group unit. Brandtech bought it in 2022 and announced the Jellyfish Commerce fusion in November 2023, with its co-founders leading the new unit while remaining founders and directors of Acorn-i. That pattern — capability being recombined into new configurations — tends to produce access to more services than a firm of that size could otherwise offer. What it predicts for you: breadth on tap, and a structure that may look different in two years than it does today.

Neither pattern is a problem. Both are worth naming during a pitch, because the questions that follow are genuinely useful: for the acquirer, how much can the house methodology flex for us? For the reorganised unit, what has changed in the delivery team over the past eighteen months, and what is planned?

The general form of this question, useful on any agency including us: what has changed structurally here in the last two years, and what is changing next? Firms that answer it plainly are usually the ones that manage change well. The answer also tells you whether the people in the room have been there long enough to know.

Where reMKTR fits

We are the Amazon DSP arm of Full Circle, a full-service Amazon management company with $500M+ in managed spend across 100+ brands, and we hold 109 live Amazon DSP advertiser seats. We are considerably smaller than one of the firms above and structurally different from the other.

The July 2026 book, measured across 30 of those advertisers and scoped as such rather than presented as the whole portfolio: 6.04x return on ad spend, 78.4 million impressions at a $4.00 CPM, a blended $1.42 cost per click, a $5.49 cost per acquisition across 57,137 attributed purchases, and 20.1% of those purchases from shoppers new to the brand.

What we sell is narrower and, we would argue, sharper: display bought where the incrementality question gets answered rather than deferred. Holdouts and matched controls, reconciled in Amazon Marketing Cloud so that display and sponsored ads stop double-counting each other. If your brief is broader than Amazon display, one of the firms above is genuinely the better hire.

Two siblings worth a look: Dr. DSP when you would rather buy this as a product with a fixed scope than retain an agency, and Full Circle when the honest brief covers listings, catalogue and search as well as display.